DE3131594A1 - Clip-type chain conveyor - Google Patents

Abstract

In a clip-type chain conveyor for penter clips with a roller mounting, such as are used in penter frames for cloth webs, an arrangement for the running and supporting rollers on the clamping clips, on the one hand, and for the associated running and supporting rails on the chain-conveyor carrier, on the other hand, is to be made, in which arrangement the clamping clips are designed as narrow as possible. In the clamping clips, this means as short a distance as possible between the clamping point of the cloth on the clip table and the pivot axis of the clip in the event of a change in direction of the chain conveyor. At the same time, the horizontal clamping forces are also to be absorbed in an as uniformly distributed manner as possible. Two vertical bolts are inserted in the clip body, and arranged on them in transverse planes and approximately mirror-symmetrically to the cloth web, above and below the clamping plane, are rollers which bear against a pair of rails arranged on the part of the chain-conveyor carrier facing the cloth web. Provided on each bolt is at least one further roller which bears against an associated further rail; this further rail is arranged on the part of the chain-conveyor carrier facing away from the cloth. The supporting rollers absorbing the vertical forces have inclined running faces. If supporting rollers are provided in different transverse planes above and below the clamping plane, their running faces have an opposite direction of inclination.

Description

Kluppenkettenbahn

The invention relates to a clip chain conveyor for clips with Roller guide in tenter frames for material webs, consisting of a chain web carrier with Z'1 therein on both sides of the fabric clamping plane of the tensioning clips on the chain track carrier arranged rod-like, endless and seamless guide rails and with their running surfaces thereon supporting rollers of the tensioning clamps.

There are numerous clip chain tracks with running and guide rails from practice known, which are used in tenter frames of textile and film stretching machines. The rollers are used to hold the web edges on the running and guide rails of the goods to be treated against the clamps that occur vertically and horizontally acting forces supported and guided. With one of the D'-OS 28 44 432 known clip chain tracks are above and below the clamping level of the clamping clips rod-like, profiled running and carrier rails with a small cross-section Bearings adapted in their profile and connected to the chain track girder in pairs arranged to be movable lengthways. The in the clamping clips above and below the clamping level in the same plane Running and carrying rollers on both sides.

The running surfaces of the running and carrying rollers are the profile of the Running and support rails adapted.

The disadvantage of this known clip chain conveyor is in particular that the horizontal arrangement of the running and carrying rollers and the running and support rails in one plane, a relatively wide one, which towers above the clump table and the structure widening the catenary girder is connected. This broadening of the structure has a relatively large distance between the clamping point of the material web on the clamp table of the swivel axis of the overall clamp in the event of a change of direction the chain train result. This fact causes the deflection of the tensioning clips in the event of a change in direction in the transverse stretching zone between the individual successive ones Tension clips of the chain an additional stretching or compression in the longitudinal direction the clamped web. This causes the edge of the web to slip out possible from the tension clamps. The running and carrying rollers on the clump table side are located directly above or below the clump table, of which in particular the ones above Track and guide rollers by dripping from their camps Lubricants in connection with abrasion and dirt cause soiling of the material web and give crusting on their edge. But this is especially true for film materials extremely undesirable.

Based on this, it is the object of the invention, the arrangement of the running and support rollers on the one hand and the running and support rails on the other in such a way that that clip body and chain track carrier have the narrowest possible structure and thereby the lowest possible undesirable elongation or compression of the To ensure web edges in the transverse stretching zone and to prevent the running and idlers over the tote table and oiling and soiling of the same to avoid. The forces occurring during operation # should be as uniform as possible distributed by the rollers of the tensioning clamps.

According to the invention, the characterizing features are used to solve the problem posed Features of claim 1 provided. Further advantageous configurations and features of the invention can be found in the remaining claims and the description.

The advantage of the invention is in particular that by the Arrangement of separate running and carrying rollers on a common vertical bolt and the assigned Running and support rails in different Layers on top of each other the overall width of the tension clamp and the chain track girder is reduced to a minimum. This is the distance from the bracket table to the pivot axis the clamping clip is limited to a minimum when the chain track changes direction and, moreover, the taper table is not exposed to any contamination from the rollers and its bolt runs out, and the clump table is free from above and below accessible.

In the case of the invention, there is the vertical forces for the arrangement of the receiving support rails and the horizontal forces absorbing rails and a relatively large amount for the arrangement of the associated supporting or running rollers Freedom.

It is important that by the arrangement according to the invention in any case the horizontal forces practically symmetrical to the clamping plane of two pairs of rollers be included. These pairs of roles are assigned to and on the Web facing part of the chain conveyor carrier lying guide rails. Only one rail is needed on the part of the chain conveyor that is facing away to be provided that prevents tilting of the clip chain in the unloaded state. # Advantageous wejse can also from there two rails in parallel to the clamping plane and transverse planes lying essentially symmetrically to it are provided. the Functions of the rails in the various transverse planes as carrier rails or as pure running rails or both combined are interchangeable. Are support rails and rollers in transverse planes both above and below the goods clamping level provided, it is advantageous if the support rollers in the two transverse planes inclined running surfaces of opposite inclination direction exhibit.

The vertical support of the clip or chain weight is advantageous taken over by the outer support rollers arranged at the bolt ends, which are with their sloping, conical or concave running surfaces to the ones in the vicinity the goods to be treated lying inside of the chain conveyor Create mounting rails. Supporting the transverse tensile forces acting on the clips is taken over by the rollers arranged further inside on the bolts, which with their cylindrical, conical or concave running surfaces to the the running rails arranged on the side of the chain conveyor carrier facing away from the goods issue.

Of course, the running and support rails are not specific Arrangement bound; this can also be made so that the mounting rails on the from the goods facing away side of the chain conveyor and the rails in the Close to the goods line. Due to the constructive reduction in size achieved in this way The size of clips and the chain track carrier is also a reduction in the Chain weight and thus the driving forces connected, which in turn is high Running speeds of the clip chain has a favorable effect.

An exemplary embodiment of the invention is shown below with reference to the drawing described.

They show: FIG. 1 a vertical section through a tensioning clip, FIG. 2 a modification of Figure 1 with a vertical cross section through a tension clip according to the line A-A of Fig.3, -Fig.3 links of a clip chain of the web facing away from the side; a clip represents a vertical longitudinal section according to the line C-C of Fig.2 and Fig.4 is a plan view of Fig.3 with a horizontal cross-section through a clamp according to the line B-B of Fig.3.

1 shows a cross section through a clip chain track 1, consisting of a catenary girder 2 with guided therein and combined into a chain Clamps 4.

The clamping plane 3 for the web to be treated is dash-dotted drawn. An arrow Q indicates the clip chain or the individual Tension clamps acting transverse tensile force indicated. The Fig.1 contains only the for The part of the clip chain conveyor serving the front run of the chain.

The part for the return is structured in an analogous manner and can connect e.g. to the right side of the chain conveyor girder 2. The structure is in FIG. 1 through the dash-dotted center line M of the chain conveyor carrier 2 indicated.

With the clip body 9 of the clamp 4 are two vertical bolts 10 connected, which are perpendicular to the clamping plane 3 and are on both sides the clamping plane 3 extend. In the sectional drawing of Figure 1 is only one of the two bolts. On the bolt 10 are both above and below the clamping plane 3 and, essentially symmetrically to it, the one for guiding the clamping clip 4 serving roles arranged in different transverse planes.

In the selected embodiment are in the at both ends of the bolt 10 lying transverse planes 5 and 6 separate, which are on the clip chain acting vertical forces absorbing support rollers 12 and 12 'provided. These both support rollers have inclined running surfaces 13 with opposite directions of inclination on. The inclined running surface 13 can be conical, as it is is shown e.g. at the upper support roller 12 lying in transverse plane 5, or the Tread 13 can optionally also have a concave shape, such as the lower one Support roller 12 'in the transverse plane 6. The support rollers 12 and 12' are supported with their oppositely inclined running surfaces 13 on the also in the transverse planes 5 and 6 arranged support rails 8 or 8 'and bear the weight of the clip chain or prevent undesired climbing of the chain while walking.

The relatively thin mounting rails consist of endless continuous flexible rods, wires or the like., Which from the chain conveyor carrier 2 on its the web of material facing side are held. The formation of the support rails 8 and 8 'is just like the design of the running rails 7 or 7 'is not the subject of the invention and therefore does not need to be explained in more detail here will.

Further inside on the common bolt 10 are in the transverse planes 5 'and 6' two rollers 11 and 11 'separated from the support rollers mentioned above also arranged approximately symmetrically to the clamping plane 3. These rollers 11 and 11 'only absorb the horizontal forces that occur during operation and settle with their running surfaces 14 against the assigned and approximately in the same transverse planes lying running rails 7 or 7 'on. The treads or treads 14 of the rollers 11 and 11 'can be cylindrical, but also similar to the support rollers 12 and 12 'have a conical or concave shape. The cylindrical shape is permitted easy adaptation to the vertical running play of the clip chain, whereas with rollers with inclined treads - there should be a relatively tight clearance.

It is important for the arrangement of the support and running rails that the Support rails extend from one side of the common bolt 10 and the running rails 7 or 7 'from the other side of the bolt 10 against the running surfaces of their Create assigned roles 12, 12 'or 11, 11'.

In the arrangement of the mounting rails and shown in FIG Support rollers carry the support roller 12 'in cooperation with the support rail 8' Weight of the clip chain. When the direction of inclination of the treads 13 in the support rollers 12 and 12 'were exchanged, the weight of the clip chain would be suspended from the support roller 12 is added in cooperation with the support rail 8. In both Cases that occur horizontally when loaded by the transverse tensile force Q also occur Forces also absorbed by the support rails 8 and 8 'and the support rollers 12 and 12'. The running rails 7 and 7 'attached to the central web of the chain track carrier 2 are used e In only for horizontal guidance of the clip chain in the unloaded state, if no transverse tensile force Q is effective. In the latter case, the rollers then lay down 11 and 11 'against the rails 7 and 7'.

As mentioned briefly above, the position of the mounting rails 8 and 8 'and the rails 7 and 71 on the chain track carrier 2 can also be exchanged for example in the manner that the rails 7 and 7 'on the one facing the web Side of the chain conveyor and the support rails 8 and 8 'on the web facing away, i.e. are arranged on the central web of the chain conveyor 2. In In this case the guide rails 7 and 7t would have the full transverse tensile force that occurs Q and relieve the support rails 8 and 8 ″ in this respect.

As a further possibility of modification it should be mentioned that if necessary the position of the rollers on the common bolt 10 can also be exchanged. For example, the support rollers 12 and 12g in the transverse planes 5 'and 6t or the rollers 11 and 111 are arranged in the transverse planes 5 and 6.

In a further embodiment shown in FIGS the I (doll body 9 consists of a U-shaped part with a top and bottom horizontal pieces.

The two are in the two horizontal pieces of the clip body 9 Bolt 10 used for the running and support rollers non-rotatable. The tensioning parts of the Clip 4 are not described in detail, e.g. via vertical guide grooves, inserted into the clip body 9. In the drawing are the swiveling flaps 4a and the clump table 4b indicated.

These two parts together form the clamping part of the clamp. At the height of the clump table 4b, the clamping plane 3 runs again for the treating web.

The clip bodies 9 are parts of an endlessly revolving chain. she are connected to one another by intermediate members 16.

The intermediate members 16 have the shape of a yoke of two approximately cylindrical Parts 16a with an upper and a lower connecting web 16b. The vertical Parts 16a and horizontal connecting webs 16b thus enclose a free one window 16c. The cylindrical parts 16a are provided with a bore for the rotatable mounting the bolt 10 is provided.

In this way, the two horizontal U-legs form the clip body 9 and the inserted as connecting parts cylindrical parts 16a of the intermediate links 16 together with the bolt 10 inserted through the chain links. There are those Distances between the two bolts 10 in a clip body 9 and the distances between two bolts from neighboring clips the same size. This creates in the area of the clip bodies 9 and also in the area of the intermediate links connecting the two clip bodies 16 spaces corresponding to the above-mentioned free windows 16c. In these Interstices or in the window 16c engage the teeth of the drive wheel for circumferential clip chain. In Figures 2 and 4, the drive wheel 17 is dashed indicated.

The support rollers 12 and 12 'are again shown in the dash-dotted lines Transverse planes 5 and 6 and the rollers 11 and 11 'in the also dash-dotted lines shown transverse planes 51 and 6 'of the bolts 10 are arranged. To define the The lines of contact of rollers with their assigned running or running planes are transverse planes. Support rails accepted.

In contrast to FIG. 1, the position of the support rails 8 is shown in FIG. 8 'interchanged with the position of the running rails 7,7'.

Thus, the running rails are 7.7 'to the left of the web there arranged horizontally, the mounting rails 8, 8 'on the other hand on the # right side, i.e. from turned away from the web. The attachment of the rails on the indicated by dashed lines Chain track girders 2 and the special design of the rod-like and flexible ones Rails are not the subject of the invention and are therefore not described in more detail here.

Advantageous for the arrangement of the rollers 11, 11 'in the transverse planes 5 'or 6' is their essentially symmetrical position to the clamping plane 3, so the transverse tensile forces occurring during operation are distributed as evenly as possible. Such a distribution of the transverse tensile forces is also shown in FIG. 1 for the support rollers 12, 12 'achieved, both the transverse tensile forces and the weight of the Pick up clip chain.

In FIG. 2, an approximately symmetrical one can also be used for the support rollers 12, 12 ' Arrangement can be provided. In this case, each bolt 10 carries above and below the clamping level 3 each have a support roller and a roller. However, it is here in Fig.2 also possible to save two support rollers per clamp and on each bolt 10 apart from the two rollers 11, 11 'to provide only one support roller, E.g. only to arrange the support roller 12 'in the lower transverse level 6. Particularly beneficial it is, as shown in Fig. 3, when in a tensioning clip alternately in the lower transverse plane 6 of a bolt 10 and in the upper transverse plane 5 of the others Bolt 10 each have a support roller 12 'or 12 is arranged. The transverse levels 5 and 6 have essentially the same distances from the clamping plane 3. Important is in any case that the transverse tensile forces to be absorbed by a tension clamp during operation are distributed essentially symmetrically, i.e. above and below the clamping plane 3 of a total of four roles can be included.

A corresponding symmetry condition for the idlers is not so important, however, offers the above-mentioned obliquely offset arrangement or centrically symmetrical Arrangement of Fig.3 advantages for operation.

Due to the separate ones arranged one above the other on a common bolt Running and carrying rollers is the distance from the clamp table to the swivel axis of the clamp reduced, which means that the web edges in the transverse stretching zone are only slightly longitudinal be stretched. In addition, there is a dripping of lubricant on the clump table and soiling of the edges of a material web caused by this is practically impossible, what by an additional above the clamping level 3 between the running and supporting roller pair 11, 12 and the clip body 9 arranged catch plate 15 is guaranteed.

Claims (11)

P a t ern t a n s p r ü c .h e 1. Clip chain conveyor for tension clips with roller guide in tensioning frame for material webs, consisting of a chain web carrier with it on both sides of the goods clamping plane of the tensioning clips on the chain conveyor arranged rod-like, endless and seamless guide rails and with the rollers of the tensioning clamps supporting their running surfaces thereon, characterized in that that a) in the clip body (9) of the clamping clips (4) two vertical bolts (10) inserted and on the bolt (10) on both sides and approximately mirror image 6 to Goods clamping plane (3) in transverse planes (5.6 in Fig. 1; 5 ', 6' in Fig. 2) of the bolts (10) Rollers (12,12 'in Fig.l, ll, ll' in Fig.2) are arranged, which are against a pair in the named transverse planes on the part of the chain conveyor carrier facing the web (2) arranged and the transverse tensile forces caused by the web to be clamped (Q) place receiving rails (8,8 'in Fig. 1; 7,7' in Fig. 2), b) on each bolt (10) in further transverse planes (5 ', 6' in Fig. 1; 5, 6 in Fig. 2) at least one further roller (11 or 11 in # Fig.i; 12 or 12 'in Figure 2) is provided is, which is against an assigned and on the part facing away from the material web of the chain track carrier (2) arranged rail (~ 7 or 7 in Fig.l; 8 or 8 'in Fig.2) applies and c) inclined the support rollers (12, 12 ') absorbing the vertical forces Have running surfaces (13). 2. Kluppenkettenbahn according to claim 1, characterized in that the support rollers (12, 12 ') absorbing the vertical forces in pairs and approximately in mirror image to the goods clamping plane (3) are arranged on the bolts (10) and inclined running surfaces (13) have the opposite direction of inclination. 3. Kluppenettenbahn according to claim 1, characterized in that the vertical forces absorbing rollers (12 ') of the two bolts (10) in one arranged below the goods clamping plane (3) lying common transverse plane (6) and the associated support rail (8 ') in the part facing away from the material web of the chain conveyor carrier (2) is arranged. 4. Kluppenkettenbahn according to claim 1, characterized in that on one of the two bolts (10) of a clamp (4) a support roller (12 ') in one Transverse plane (6) below the goods clamping plane (3) and on the other bolt (10) the same clamp (4) has a roller (12) in an approximately mirror image of it Above the goods clamping plane (3) lying transverse plane (5) is arranged and the Support rollers (12, 12 ') inclined running surfaces (13) of opposite directions of inclination have, and that the associated support rails (8, 8 ') in the one facing away from the web of material Part of the chain conveyor (2) are arranged. 5. Kluppenettenbahn according to any one of claims 1-4, characterized in that that the running surface or the running ring (13) of the support rollers (12, 12 ') is conical. 6. Kluppenettenbahn according to any one of claims 1-4, characterized in that that the running surface or the running ring (13) of the support rollers (12, 12 ') is concave. 7. clip chain conveyor according to claim 1, characterized in that at least one of the rollers (11, 11 ') absorbing the horizontal transverse tensile forces (Q) has an inclined running surface (14). 8. clip chain conveyor according to claim 7, characterized in that the running surface or the Iaufkranz (14) of the rollers (11, 11 ') is conical. 9. Kluppenkettenbahn according to claim 7, characterized in that the running surface or the running ring (14) of the rollers (11, 11 ') is concave. 10. Kluppenettenbahn according to one of claims 7-9, characterized in that that the rollers lying on opposite sides of the goods clamping plane (3) (11, 11 ') have oppositely inclined running surfaces (14). 11. Kluppenettenbahn according to any one of claims 1-10, characterized in that that over the clamping plane (3) between the running and supporting roller pair (11,12) and a catch plate (15) is provided for the clip body (9).